Boiler cleaner



March 8, 1932. N. L.. SNOW l 1,848,230

BOILER CLEANER Original Filed Sept. 15, 1923 4 Sheets-Shee'fI l vf' 4.9. i; W w

N. L. SNOW BOILER CLEANER Marichs, 1932.

Original Filed Sept. l5, 1923 4 Sheets-Sheet 2 March s, 1932.

N. 1 SNOW 1,848,230

BOILER CLEANER Original Filed Sept. l5, 1923 4 Sheets-Sheet 3 N. L. sNQW BOILER CLEANER March 8, 1932.

Original FiledSept. l5, 1923 4 Sheets-Sheet 4 ,hifi E Iwan . Patented Mar. s, 193.2 y u n 'STATES PATENT o1=1=li1c1:. f

NoRiIAN 4I1. sNoW, ory NEwfCANAnNcoNNEcTIcUT, nssIeNoR `To DIAMoNn lTowne BOILER` QLEANERY p 'Appneatinmed september 15, 1923, ser1a1 N6. 663,003. Renewed :riny 24, 1931.

This inventionk relates V:to .boiler cleaners and refers more .particularlyto boiler'cleaners lofthe generaltype .in which the blower pipe is provided with aiplurality ofnozzles '4* distributed lthroughouty 1 its 1 longitudmal length` and through, which steam or other cleaning fluid is discharged against thehoiler tubesor other surfaces to be cleaned. YiOne-ofy the-objects of the invention is to ,provide a.

constructiony of ithisgeneral: character in which the valve `for controlling the ysupplyof cleaning fluid'. to; the .blower pipev during certain portions of rotative movement of the pipe can be formed integra-l with :or rlgidly type of boiler cleaner,itis necessary to supf vportthe pipe from the boilery tube. 2 Under theheat ofthe boilerthere is a different rate that of theboiler setting.V Thisl has hereto` fore prevented the -use of avalve'formed in? further resides vinthe -provisions for fleXibiL' ity and movement of the blower pipeand its parts, as are hereinafter set cations areshown;V

Figure 1Q is a vertical sectional view A145i ity of nozzles 21 distributed throughout its y connected with the blower pipe. v Because of v f thelongulength ofthe blower Ypipe 1n this of Verpansion of the boiler and its tubes'thany associated valvefwith reference tothe head'y in which the blower pipe is swivelled, andinsuch further features of construction and ar- In the drawings which various rnodiiifv longitudinal length yso to discharge jjetsof.: d ik srnoIALTYCORPORATIONor DETROIT, MICHIGAN, CORPORATION oF MICHIGAN Y steam against the boiler tubes 22. This `blowa` er, pipe lprojects through Ya wall hoX A23 mounted in the boiler wall 24 andv'its inner end vis Vsupported `by vsuitablebrackets frorn`k the boiler tubes 22. l' Y Turning movement; toA the pipe -20 is parted by means of a sheave wheel 25 yoverV which extends a chain 26 so that asthechain 26 is pulled, it will rotate the blower `pipe 20v and direct the ets from the nozzles 2l against differentportions of the boiler tubes. Steam, toA the pipe is furnished through the inlet 27k which opens into the Ablower head 28. f

1Within a casing or housing 28 ofthis, head iso-located a'sleeve29having a port 30 cooperatingwiththe portBl in the'slee've orL pipe extension 32. LIt will be noted that this i pipe extension v32 as well as the blower pipe 20 arescrew-threaded into thesheave wheel so that ineifec't theport Blis formedin2 a valve member that is in Xed relation to the blower. pipe. Therefore, `as the latter is A rotated the port 3l will. register with the port 30 so'that at certain predetermined rotative positions ofthe blower pipe 20 it will be open to'steam or like supply through the ports 30 andl `and head28and inlet 27 ,while at other positionsV the supply of steamzor thelile t?L the blower lpipe 20 is; automatically` cut o f Owingrtolthewarpingm'ovementof the y blower pipel 2() due to difference in expansion Vand to various other causesfthe construction as so ,fardescribedv would beV inoperative for any vpracticalv purposes vsincethe valvefmemo ber 32 would bindiin the sleeve 29,?butin the present novel, construction, this difficulty is overcome in lthe following manner. Y The. Y sleeve 29 at its inner end has a spheriealhead 33 with seats on a sphericalbearing ,blocky 34 ony which; it rocks to take Vcare of any rocking movement.` 'The bearing block 34 iskk itself slidably mounted to takecare of any vertical or lateral movement between the blower pipe 20 and the head 28, which latter is secured by bolts 36 or the like to the wall box 23. At `its outer end there is provided an end thrust bearing 37 and a steam tight connection is made by employing a corrugated type of flexible joint such as is produced by the corrugated lexible member 38. It will thus be seen that by the novel construction andl mounting of the valve member and its supports it is possible to form the movable valve member 32 rigid with the blower pipe 20.

In the modification shown in Figure 2, the blower pipe 20 is continued out to form the movable valve member 46 and this valve member'46 is mounted ina sleeve 47 which sleeve Y is connected at each end to 'the `blo-wer head 28a by means of corrugated flexible members or diaphragms 49. An end thrust bearingO is provided, whichbearing is formed in a slidable seat v51, so that in this construction as well as in that shown in Fig. 1, movement in every'direction is provided for.

' In Figure 3 is shown a still further modifi-- cation including a blower head 28?) and assolciated therewithisa'conical valve head 57 seating in a conical valve seat 58 formed in the'header or ygoose-neck 59. This conical valve 57 is rigidly connected to the `blower pipe 20'but thelatter itself `is formed in two parts connected by a ilexible diaphragm 60.

By this arrangement any deflection of the' blower pipe 2 as by the warping of the boiler tubes 61 on which the blower pipe is mounted 'by brackets62, is prevented from.

c bein transmitted to the movable valve member 5 Vbecause of thefflexibility in the blower pipe itself.

In Figure 4, 28o-represents the blower head, the general 'arrangement of the valve 57 and -the conical valve seat 58 in the goose-neck 59- being similar to that shown in Figure 3. The blower pipe 20 in thisr case is formed of two separate sections which are connected together by adriving lug 63 which has sufficient cleari ance to permit of some play. Vertical or .lat-

eral movement is taken care of by a thrust bearing 64 while any rockingmovement is taken care of by a spherical bearing 65' mounted in a. seat 66 which is itself slidingly mounted-to take care of 'vertical or lateral movement.

A still/further modification is shown inv Fi re 5 in whichfthe blower pipe20 is provi ed with a telescopic arrangement in the form of a slip joint 82totak'e care of any longitudinal `movement of the blower pipe 20 with relation to the stationary blower-head 83. f* The valve 84 is mounted in a seat 85 yinV the stationary head 83 and any rocking move-` ment is taken care of by the sphericalbearing 86 mounted ontheblower'pi'pe 20 and seating on the spherical bearing seat 86a.y The sheave wheel 90 may be mounted rigidly on the valve part 84, while the sleeve`82 maybe keyed tothe end 20a of the blower pipe `20 as by a key 91. The blower pipe 20 is rotatably supported from the boiler tubes 22 by means of bearings 87 and longitudinal movement of the blower pipe 20 1s substantially prevented by collars 88 on opposite. sides of the bearing portion 89.

I do not, however, desire to limit the invention to the particular constructions shown, since various changes and further modifications will be apparent from a disclosure of they particular `constructions described.

What I claim-as my invention isz- 1. In a boiler cleaner, the combination with a boiler wall and a blower ipe extending transversely 'through said jwfa said' blower ypipe being provided witha -nozzle for dischar ing a cleaning fluid against a surface to be c eaned, of a blower head mounting the iblowenpipe and having rigid-supporting en- 2. A boiler cleaner comprising in combination with a boiler wall and anopening therethrough a cleaning fluid chamber fixed with respect to the boiler wall,- a blower yelement extending through said opening and havingk a'ported end within the said chamber, means for rotating saidlelement, a sleeve surrounding said end of the element and provided with aport adapted to register withthe element port 'asthe element is rotated with lrespect to the 'y sleeve, and means affording' a chamber.v

3. A boilerfcleaner comprising in combination with a boiler wall and'fa'n opening therethrough a cleaning luidlc'hamber fixed with respect to the boiler wall, a 'blower element extending through said opening and having a ported end within lthe saidechamber, means for'rotating said element, a vsleeve surrounding said end of the element and 'provided with a port adapted to register with the element port as the Velement isrotated with res ct'to the sleeve, .d and means affording' a d); connection between the sleeveyand chamber, said 'means comprising aV flexible diaphragm.

4. In a boiler cleaner, a blower head,fa tat'able cleaner elementjournaled in said flexible connection Abetween the sleeve and head, and a valve carried by said cleaner eletween saidsleeve valve and said head permitting relative universal movement.'

xible v1,848,230V i In a boiler cleaner, a blowerhead, a

, flexible extension fitted to said head, a blower` Vsleeve valve withinl said head, a flexible cor-r i rugated member supporting said sleeve valve yfrom said head, and a blower element journaled in said sleeve valve.

10. In aboiler cleaner, a blower head, a valve yieldably supported within said head for floating movement therein, and a blower element having a port controlled by said valve, said blower element being'mounted for floating movement within the head with .the

said valve.

11. In a boiler cleaner, a blower head, a valve member wit-hin said head, a flexible corrugated member connectingk said valve memberto said head whereby said valve ,member ismounted for lioating movement within said head, and a blower' element having a port controlled by said valve, the said lower element being mounted for floating movement within the head with the valve.

l 12.1In -a boiler cleaner, a movable blower element, means carriedsby said blower elemen-t for moving the same to direct jets of cleaning Huid from the blower element adjacent portions of the boiler to be cleaned,y

- means including a blower head for supplying cleaning fluid to the blower element, and a n 'yieldable connection between said blower head and said blower element providingfor relative movement between the axes of said blower head and blower element in parallel planes. y A

13. In a boiler cleaner, a movable blower element, means `for moving vsaid blower ele-l ment toY direct jets of cleaningv fluid from the same adjacent portions of thel boiler `to be element to provide for the uncovering `of said surfaced l'valve seating onthe blower ele vment' for controllingthe flow of cleaning fluid through said port, and Ameans including a yieldable member disposed between the valve and the `blower head for yieldably mounting said valve. n A

15. In a boiler cleaner, a blower head, ay rotatable blower lelementy extending into said Ahead, said blower element being f formed with a laterally opening port located in the portion of the blower element extending within the head, a cylindrically surfaced valve seating ontlie blower element for controlling the rflow of cleaningl Afluid through said port, and means including a yieldable member disposed between the valve and-the blower head arranged to provide for movement of the valve in a plane perpendicular to the axis of lthey blower element. v a

16; In a boiler cleaner, a blower head,

a rotatable blower element extending into said head, said blower element beingV `formed with a laterally opening `port located in the portion of the blower element extending withiny the head, a cylindrically surfaced valve seating on the blower element for controlling the flow ofy cleaning Vluid through said port, means includinga yieldable member disposed between the valve and the blower head for yieldably mounting said valve, means for rotating the blower element, and means for restraining said valve against rotation with the yblower port upon rotation of the blower element to admit cleaning fluid to the blower element.' In testimony whereofI aix my signature.V

NORMAN L. snow.

cleaned, means including ahead for supplyv ing cleaning Huid to said blower element, and

a valve operable ink timed relation to the movement of said blower element for controlling the How of cleaning fluid to the blower element, said valve and blower element being mounted y`i`or oating movement with respect to said blower head. l

14. In a boiler cleaner, `a blower head, a rotatable blower element extending into said f head, said blower yelement being formed with a laterally opening port loc cated in the portion of the blower element extending within the head, a cylindrically 

